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sys/dev/usb/net/if_usie.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2011 Anybots Inc 5 * written by Akinori Furukoshi <moonlightakkiy@yahoo.ca> 6 * - ucom part is based on u3g.c 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/eventhandler.h> 35 #include <sys/systm.h> 36 #include <sys/queue.h> 37 #include <sys/systm.h> 38 #include <sys/socket.h> 39 #include <sys/kernel.h> 40 #include <sys/bus.h> 41 #include <sys/module.h> 42 #include <sys/sockio.h> 43 #include <sys/socket.h> 44 #include <sys/lock.h> 45 #include <sys/mutex.h> 46 #include <sys/condvar.h> 47 #include <sys/sysctl.h> 48 #include <sys/malloc.h> 49 #include <sys/taskqueue.h> 50 51 #include <net/if.h> 52 #include <net/if_var.h> 53 54 #include <machine/bus.h> 55 56 #include <net/if.h> 57 #include <net/if_types.h> 58 #include <net/netisr.h> 59 #include <net/bpf.h> 60 #include <net/ethernet.h> 61 62 #include <netinet/in.h> 63 #include <netinet/ip.h> 64 #include <netinet/ip6.h> 65 #include <netinet/udp.h> 66 67 #include <net80211/ieee80211_ioctl.h> 68 69 #include <dev/usb/usb.h> 70 #include <dev/usb/usbdi.h> 71 #include <dev/usb/usbdi_util.h> 72 #include <dev/usb/usb_cdc.h> 73 #include "usbdevs.h" 74 75 #define USB_DEBUG_VAR usie_debug 76 #include <dev/usb/usb_debug.h> 77 #include <dev/usb/usb_process.h> 78 #include <dev/usb/usb_msctest.h> 79 80 #include <dev/usb/serial/usb_serial.h> 81 82 #include <dev/usb/net/if_usievar.h> 83 84 #ifdef USB_DEBUG 85 static int usie_debug = 0; 86 87 static SYSCTL_NODE(_hw_usb, OID_AUTO, usie, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 88 "sierra USB modem"); 89 SYSCTL_INT(_hw_usb_usie, OID_AUTO, debug, CTLFLAG_RWTUN, &usie_debug, 0, 90 "usie debug level"); 91 #endif 92 93 /* Sierra Wireless Direct IP modems */ 94 static const STRUCT_USB_HOST_ID usie_devs[] = { 95 #define USIE_DEV(v, d) { \ 96 USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##d) } 97 USIE_DEV(SIERRA, MC8700), 98 USIE_DEV(SIERRA, TRUINSTALL), 99 USIE_DEV(AIRPRIME, USB308), 100 #undef USIE_DEV 101 }; 102 103 static device_probe_t usie_probe; 104 static device_attach_t usie_attach; 105 static device_detach_t usie_detach; 106 static void usie_free_softc(struct usie_softc *); 107 108 static void usie_free(struct ucom_softc *); 109 static void usie_uc_update_line_state(struct ucom_softc *, uint8_t); 110 static void usie_uc_cfg_get_status(struct ucom_softc *, uint8_t *, uint8_t *); 111 static void usie_uc_cfg_set_dtr(struct ucom_softc *, uint8_t); 112 static void usie_uc_cfg_set_rts(struct ucom_softc *, uint8_t); 113 static void usie_uc_cfg_open(struct ucom_softc *); 114 static void usie_uc_cfg_close(struct ucom_softc *); 115 static void usie_uc_start_read(struct ucom_softc *); 116 static void usie_uc_stop_read(struct ucom_softc *); 117 static void usie_uc_start_write(struct ucom_softc *); 118 static void usie_uc_stop_write(struct ucom_softc *); 119 120 static usb_callback_t usie_uc_tx_callback; 121 static usb_callback_t usie_uc_rx_callback; 122 static usb_callback_t usie_uc_status_callback; 123 static usb_callback_t usie_if_tx_callback; 124 static usb_callback_t usie_if_rx_callback; 125 static usb_callback_t usie_if_status_callback; 126 127 static void usie_if_sync_to(void *); 128 static void usie_if_sync_cb(void *, int); 129 static void usie_if_status_cb(void *, int); 130 131 static void usie_if_start(struct ifnet *); 132 static int usie_if_output(struct ifnet *, struct mbuf *, 133 const struct sockaddr *, struct route *); 134 static void usie_if_init(void *); 135 static void usie_if_stop(struct usie_softc *); 136 static int usie_if_ioctl(struct ifnet *, u_long, caddr_t); 137 138 static int usie_do_request(struct usie_softc *, struct usb_device_request *, void *); 139 static int usie_if_cmd(struct usie_softc *, uint8_t); 140 static void usie_cns_req(struct usie_softc *, uint32_t, uint16_t); 141 static void usie_cns_rsp(struct usie_softc *, struct usie_cns *); 142 static void usie_hip_rsp(struct usie_softc *, uint8_t *, uint32_t); 143 static int usie_driver_loaded(struct module *, int, void *); 144 145 static const struct usb_config usie_uc_config[USIE_UC_N_XFER] = { 146 [USIE_UC_STATUS] = { 147 .type = UE_INTERRUPT, 148 .endpoint = UE_ADDR_ANY, 149 .direction = UE_DIR_IN, 150 .bufsize = 0, /* use wMaxPacketSize */ 151 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 152 .callback = &usie_uc_status_callback, 153 }, 154 [USIE_UC_RX] = { 155 .type = UE_BULK, 156 .endpoint = UE_ADDR_ANY, 157 .direction = UE_DIR_IN, 158 .bufsize = USIE_BUFSIZE, 159 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.proxy_buffer = 1,}, 160 .callback = &usie_uc_rx_callback, 161 }, 162 [USIE_UC_TX] = { 163 .type = UE_BULK, 164 .endpoint = UE_ADDR_ANY, 165 .direction = UE_DIR_OUT, 166 .bufsize = USIE_BUFSIZE, 167 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 168 .callback = &usie_uc_tx_callback, 169 } 170 }; 171 172 static const struct usb_config usie_if_config[USIE_IF_N_XFER] = { 173 [USIE_IF_STATUS] = { 174 .type = UE_INTERRUPT, 175 .endpoint = UE_ADDR_ANY, 176 .direction = UE_DIR_IN, 177 .bufsize = 0, /* use wMaxPacketSize */ 178 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 179 .callback = &usie_if_status_callback, 180 }, 181 [USIE_IF_RX] = { 182 .type = UE_BULK, 183 .endpoint = UE_ADDR_ANY, 184 .direction = UE_DIR_IN, 185 .bufsize = USIE_BUFSIZE, 186 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 187 .callback = &usie_if_rx_callback, 188 }, 189 [USIE_IF_TX] = { 190 .type = UE_BULK, 191 .endpoint = UE_ADDR_ANY, 192 .direction = UE_DIR_OUT, 193 .bufsize = MAX(USIE_BUFSIZE, MCLBYTES), 194 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 195 .callback = &usie_if_tx_callback, 196 } 197 }; 198 199 static device_method_t usie_methods[] = { 200 DEVMETHOD(device_probe, usie_probe), 201 DEVMETHOD(device_attach, usie_attach), 202 DEVMETHOD(device_detach, usie_detach), 203 DEVMETHOD_END 204 }; 205 206 static driver_t usie_driver = { 207 .name = "usie", 208 .methods = usie_methods, 209 .size = sizeof(struct usie_softc), 210 }; 211 212 static eventhandler_tag usie_etag; 213 214 DRIVER_MODULE(usie, uhub, usie_driver, usie_driver_loaded, NULL); 215 MODULE_DEPEND(usie, ucom, 1, 1, 1); 216 MODULE_DEPEND(usie, usb, 1, 1, 1); 217 MODULE_VERSION(usie, 1); 218 USB_PNP_HOST_INFO(usie_devs); 219 220 static const struct ucom_callback usie_uc_callback = { 221 .ucom_cfg_get_status = &usie_uc_cfg_get_status, 222 .ucom_cfg_set_dtr = &usie_uc_cfg_set_dtr, 223 .ucom_cfg_set_rts = &usie_uc_cfg_set_rts, 224 .ucom_cfg_open = &usie_uc_cfg_open, 225 .ucom_cfg_close = &usie_uc_cfg_close, 226 .ucom_start_read = &usie_uc_start_read, 227 .ucom_stop_read = &usie_uc_stop_read, 228 .ucom_start_write = &usie_uc_start_write, 229 .ucom_stop_write = &usie_uc_stop_write, 230 .ucom_free = &usie_free, 231 }; 232 233 static void 234 usie_autoinst(void *arg, struct usb_device *udev, 235 struct usb_attach_arg *uaa) 236 { 237 struct usb_interface *iface; 238 struct usb_interface_descriptor *id; 239 struct usb_device_request req; 240 int err; 241 242 if (uaa->dev_state != UAA_DEV_READY) 243 return; 244 245 iface = usbd_get_iface(udev, 0); 246 if (iface == NULL) 247 return; 248 249 id = iface->idesc; 250 if (id == NULL || id->bInterfaceClass != UICLASS_MASS) 251 return; 252 253 if (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa) != 0) 254 return; /* no device match */ 255 256 if (bootverbose) { 257 DPRINTF("Ejecting %s %s\n", 258 usb_get_manufacturer(udev), 259 usb_get_product(udev)); 260 } 261 req.bmRequestType = UT_VENDOR; 262 req.bRequest = UR_SET_INTERFACE; 263 USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP); 264 USETW(req.wIndex, UHF_PORT_CONNECTION); 265 USETW(req.wLength, 0); 266 267 /* at this moment there is no mutex */ 268 err = usbd_do_request_flags(udev, NULL, &req, 269 NULL, 0, NULL, 250 /* ms */ ); 270 271 /* success, mark the udev as disappearing */ 272 if (err == 0) 273 uaa->dev_state = UAA_DEV_EJECTING; 274 } 275 276 static int 277 usie_probe(device_t self) 278 { 279 struct usb_attach_arg *uaa = device_get_ivars(self); 280 281 if (uaa->usb_mode != USB_MODE_HOST) 282 return (ENXIO); 283 if (uaa->info.bConfigIndex != USIE_CNFG_INDEX) 284 return (ENXIO); 285 if (uaa->info.bIfaceIndex != USIE_IFACE_INDEX) 286 return (ENXIO); 287 if (uaa->info.bInterfaceClass != UICLASS_VENDOR) 288 return (ENXIO); 289 290 return (usbd_lookup_id_by_uaa(usie_devs, sizeof(usie_devs), uaa)); 291 } 292 293 static int 294 usie_attach(device_t self) 295 { 296 struct usie_softc *sc = device_get_softc(self); 297 struct usb_attach_arg *uaa = device_get_ivars(self); 298 struct ifnet *ifp; 299 struct usb_interface *iface; 300 struct usb_interface_descriptor *id; 301 struct usb_device_request req; 302 int err; 303 uint16_t fwattr; 304 uint8_t iface_index; 305 uint8_t ifidx; 306 uint8_t start; 307 308 device_set_usb_desc(self); 309 sc->sc_udev = uaa->device; 310 sc->sc_dev = self; 311 312 mtx_init(&sc->sc_mtx, "usie", MTX_NETWORK_LOCK, MTX_DEF); 313 ucom_ref(&sc->sc_super_ucom); 314 315 TASK_INIT(&sc->sc_if_status_task, 0, usie_if_status_cb, sc); 316 TASK_INIT(&sc->sc_if_sync_task, 0, usie_if_sync_cb, sc); 317 318 usb_callout_init_mtx(&sc->sc_if_sync_ch, &sc->sc_mtx, 0); 319 320 mtx_lock(&sc->sc_mtx); 321 322 /* set power mode to D0 */ 323 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 324 req.bRequest = USIE_POWER; 325 USETW(req.wValue, 0); 326 USETW(req.wIndex, 0); 327 USETW(req.wLength, 0); 328 if (usie_do_request(sc, &req, NULL)) { 329 mtx_unlock(&sc->sc_mtx); 330 goto detach; 331 } 332 /* read fw attr */ 333 fwattr = 0; 334 req.bmRequestType = UT_READ_VENDOR_DEVICE; 335 req.bRequest = USIE_FW_ATTR; 336 USETW(req.wValue, 0); 337 USETW(req.wIndex, 0); 338 USETW(req.wLength, sizeof(fwattr)); 339 if (usie_do_request(sc, &req, &fwattr)) { 340 mtx_unlock(&sc->sc_mtx); 341 goto detach; 342 } 343 mtx_unlock(&sc->sc_mtx); 344 345 /* check DHCP supports */ 346 DPRINTF("fwattr=%x\n", fwattr); 347 if (!(fwattr & USIE_FW_DHCP)) { 348 device_printf(self, "DHCP is not supported. A firmware upgrade might be needed.\n"); 349 } 350 351 /* find available interfaces */ 352 sc->sc_nucom = 0; 353 for (ifidx = 0; ifidx < USIE_IFACE_MAX; ifidx++) { 354 iface = usbd_get_iface(uaa->device, ifidx); 355 if (iface == NULL) 356 break; 357 358 id = usbd_get_interface_descriptor(iface); 359 if ((id == NULL) || (id->bInterfaceClass != UICLASS_VENDOR)) 360 continue; 361 362 /* setup Direct IP transfer */ 363 if (id->bInterfaceNumber >= 7 && id->bNumEndpoints == 3) { 364 sc->sc_if_ifnum = id->bInterfaceNumber; 365 iface_index = ifidx; 366 367 DPRINTF("ifnum=%d, ifidx=%d\n", 368 sc->sc_if_ifnum, ifidx); 369 370 err = usbd_transfer_setup(uaa->device, 371 &iface_index, sc->sc_if_xfer, usie_if_config, 372 USIE_IF_N_XFER, sc, &sc->sc_mtx); 373 374 if (err == 0) 375 continue; 376 377 device_printf(self, 378 "could not allocate USB transfers on " 379 "iface_index=%d, err=%s\n", 380 iface_index, usbd_errstr(err)); 381 goto detach; 382 } 383 384 /* setup ucom */ 385 if (sc->sc_nucom >= USIE_UCOM_MAX) 386 continue; 387 388 usbd_set_parent_iface(uaa->device, ifidx, 389 uaa->info.bIfaceIndex); 390 391 DPRINTF("NumEndpoints=%d bInterfaceNumber=%d\n", 392 id->bNumEndpoints, id->bInterfaceNumber); 393 394 if (id->bNumEndpoints == 2) { 395 sc->sc_uc_xfer[sc->sc_nucom][0] = NULL; 396 start = 1; 397 } else 398 start = 0; 399 400 err = usbd_transfer_setup(uaa->device, &ifidx, 401 sc->sc_uc_xfer[sc->sc_nucom] + start, 402 usie_uc_config + start, USIE_UC_N_XFER - start, 403 &sc->sc_ucom[sc->sc_nucom], &sc->sc_mtx); 404 405 if (err != 0) { 406 DPRINTF("usbd_transfer_setup error=%s\n", usbd_errstr(err)); 407 continue; 408 } 409 410 mtx_lock(&sc->sc_mtx); 411 for (; start < USIE_UC_N_XFER; start++) 412 usbd_xfer_set_stall(sc->sc_uc_xfer[sc->sc_nucom][start]); 413 mtx_unlock(&sc->sc_mtx); 414 415 sc->sc_uc_ifnum[sc->sc_nucom] = id->bInterfaceNumber; 416 417 sc->sc_nucom++; /* found a port */ 418 } 419 420 if (sc->sc_nucom == 0) { 421 device_printf(self, "no comports found\n"); 422 goto detach; 423 } 424 425 err = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom, 426 sc->sc_nucom, sc, &usie_uc_callback, &sc->sc_mtx); 427 428 if (err != 0) { 429 DPRINTF("ucom_attach failed\n"); 430 goto detach; 431 } 432 DPRINTF("Found %d interfaces.\n", sc->sc_nucom); 433 434 /* setup ifnet (Direct IP) */ 435 sc->sc_ifp = ifp = if_alloc(IFT_OTHER); 436 437 if (ifp == NULL) { 438 device_printf(self, "Could not allocate a network interface\n"); 439 goto detach; 440 } 441 if_initname(ifp, "usie", device_get_unit(self)); 442 443 ifp->if_softc = sc; 444 ifp->if_mtu = USIE_MTU_MAX; 445 ifp->if_flags |= IFF_NOARP; 446 ifp->if_init = usie_if_init; 447 ifp->if_ioctl = usie_if_ioctl; 448 ifp->if_start = usie_if_start; 449 ifp->if_output = usie_if_output; 450 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 451 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 452 IFQ_SET_READY(&ifp->if_snd); 453 454 if_attach(ifp); 455 bpfattach(ifp, DLT_RAW, 0); 456 457 if (fwattr & USIE_PM_AUTO) { 458 usbd_set_power_mode(uaa->device, USB_POWER_MODE_SAVE); 459 DPRINTF("enabling automatic suspend and resume\n"); 460 } else { 461 usbd_set_power_mode(uaa->device, USB_POWER_MODE_ON); 462 DPRINTF("USB power is always ON\n"); 463 } 464 465 DPRINTF("device attached\n"); 466 return (0); 467 468 detach: 469 usie_detach(self); 470 return (ENOMEM); 471 } 472 473 static int 474 usie_detach(device_t self) 475 { 476 struct usie_softc *sc = device_get_softc(self); 477 uint8_t x; 478 479 /* detach ifnet */ 480 if (sc->sc_ifp != NULL) { 481 usie_if_stop(sc); 482 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER); 483 bpfdetach(sc->sc_ifp); 484 if_detach(sc->sc_ifp); 485 if_free(sc->sc_ifp); 486 sc->sc_ifp = NULL; 487 } 488 /* detach ucom */ 489 if (sc->sc_nucom > 0) 490 ucom_detach(&sc->sc_super_ucom, sc->sc_ucom); 491 492 /* stop all USB transfers */ 493 usbd_transfer_unsetup(sc->sc_if_xfer, USIE_IF_N_XFER); 494 495 for (x = 0; x != USIE_UCOM_MAX; x++) 496 usbd_transfer_unsetup(sc->sc_uc_xfer[x], USIE_UC_N_XFER); 497 498 device_claim_softc(self); 499 500 usie_free_softc(sc); 501 502 return (0); 503 } 504 505 UCOM_UNLOAD_DRAIN(usie); 506 507 static void 508 usie_free_softc(struct usie_softc *sc) 509 { 510 if (ucom_unref(&sc->sc_super_ucom)) { 511 mtx_destroy(&sc->sc_mtx); 512 device_free_softc(sc); 513 } 514 } 515 516 static void 517 usie_free(struct ucom_softc *ucom) 518 { 519 usie_free_softc(ucom->sc_parent); 520 } 521 522 static void 523 usie_uc_update_line_state(struct ucom_softc *ucom, uint8_t ls) 524 { 525 struct usie_softc *sc = ucom->sc_parent; 526 struct usb_device_request req; 527 528 if (sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS] == NULL) 529 return; 530 531 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 532 req.bRequest = USIE_LINK_STATE; 533 USETW(req.wValue, ls); 534 USETW(req.wIndex, sc->sc_uc_ifnum[ucom->sc_subunit]); 535 USETW(req.wLength, 0); 536 537 DPRINTF("sc_uc_ifnum=%d\n", sc->sc_uc_ifnum[ucom->sc_subunit]); 538 539 usie_do_request(sc, &req, NULL); 540 } 541 542 static void 543 usie_uc_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr) 544 { 545 struct usie_softc *sc = ucom->sc_parent; 546 547 *msr = sc->sc_msr; 548 *lsr = sc->sc_lsr; 549 } 550 551 static void 552 usie_uc_cfg_set_dtr(struct ucom_softc *ucom, uint8_t flag) 553 { 554 uint8_t dtr; 555 556 dtr = flag ? USIE_LS_DTR : 0; 557 usie_uc_update_line_state(ucom, dtr); 558 } 559 560 static void 561 usie_uc_cfg_set_rts(struct ucom_softc *ucom, uint8_t flag) 562 { 563 uint8_t rts; 564 565 rts = flag ? USIE_LS_RTS : 0; 566 usie_uc_update_line_state(ucom, rts); 567 } 568 569 static void 570 usie_uc_cfg_open(struct ucom_softc *ucom) 571 { 572 struct usie_softc *sc = ucom->sc_parent; 573 574 /* usbd_transfer_start() is NULL safe */ 575 576 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]); 577 } 578 579 static void 580 usie_uc_cfg_close(struct ucom_softc *ucom) 581 { 582 struct usie_softc *sc = ucom->sc_parent; 583 584 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]); 585 } 586 587 static void 588 usie_uc_start_read(struct ucom_softc *ucom) 589 { 590 struct usie_softc *sc = ucom->sc_parent; 591 592 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]); 593 } 594 595 static void 596 usie_uc_stop_read(struct ucom_softc *ucom) 597 { 598 struct usie_softc *sc = ucom->sc_parent; 599 600 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_RX]); 601 } 602 603 static void 604 usie_uc_start_write(struct ucom_softc *ucom) 605 { 606 struct usie_softc *sc = ucom->sc_parent; 607 608 usbd_transfer_start(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]); 609 } 610 611 static void 612 usie_uc_stop_write(struct ucom_softc *ucom) 613 { 614 struct usie_softc *sc = ucom->sc_parent; 615 616 usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]); 617 } 618 619 static void 620 usie_uc_rx_callback(struct usb_xfer *xfer, usb_error_t error) 621 { 622 struct ucom_softc *ucom = usbd_xfer_softc(xfer); 623 struct usie_softc *sc = ucom->sc_parent; 624 struct usb_page_cache *pc; 625 uint32_t actlen; 626 627 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 628 629 switch (USB_GET_STATE(xfer)) { 630 case USB_ST_TRANSFERRED: 631 pc = usbd_xfer_get_frame(xfer, 0); 632 633 /* handle CnS response */ 634 if (ucom == sc->sc_ucom && actlen >= USIE_HIPCNS_MIN) { 635 DPRINTF("transferred=%u\n", actlen); 636 637 /* check if it is really CnS reply */ 638 usbd_copy_out(pc, 0, sc->sc_resp_temp, 1); 639 640 if (sc->sc_resp_temp[0] == USIE_HIP_FRM_CHR) { 641 /* verify actlen */ 642 if (actlen > USIE_BUFSIZE) 643 actlen = USIE_BUFSIZE; 644 645 /* get complete message */ 646 usbd_copy_out(pc, 0, sc->sc_resp_temp, actlen); 647 usie_hip_rsp(sc, sc->sc_resp_temp, actlen); 648 649 /* need to fall though */ 650 goto tr_setup; 651 } 652 /* else call ucom_put_data() */ 653 } 654 /* standard ucom transfer */ 655 ucom_put_data(ucom, pc, 0, actlen); 656 657 /* fall though */ 658 case USB_ST_SETUP: 659 tr_setup: 660 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 661 usbd_transfer_submit(xfer); 662 break; 663 664 default: /* Error */ 665 if (error != USB_ERR_CANCELLED) { 666 usbd_xfer_set_stall(xfer); 667 goto tr_setup; 668 } 669 break; 670 } 671 } 672 673 static void 674 usie_uc_tx_callback(struct usb_xfer *xfer, usb_error_t error) 675 { 676 struct ucom_softc *ucom = usbd_xfer_softc(xfer); 677 struct usb_page_cache *pc; 678 uint32_t actlen; 679 680 switch (USB_GET_STATE(xfer)) { 681 case USB_ST_TRANSFERRED: 682 case USB_ST_SETUP: 683 tr_setup: 684 pc = usbd_xfer_get_frame(xfer, 0); 685 686 /* handle CnS request */ 687 struct mbuf *m = usbd_xfer_get_priv(xfer); 688 689 if (m != NULL) { 690 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 691 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); 692 usbd_xfer_set_priv(xfer, NULL); 693 usbd_transfer_submit(xfer); 694 m_freem(m); 695 break; 696 } 697 /* standard ucom transfer */ 698 if (ucom_get_data(ucom, pc, 0, USIE_BUFSIZE, &actlen)) { 699 usbd_xfer_set_frame_len(xfer, 0, actlen); 700 usbd_transfer_submit(xfer); 701 } 702 break; 703 704 default: /* Error */ 705 if (error != USB_ERR_CANCELLED) { 706 usbd_xfer_set_stall(xfer); 707 goto tr_setup; 708 } 709 break; 710 } 711 } 712 713 static void 714 usie_uc_status_callback(struct usb_xfer *xfer, usb_error_t error) 715 { 716 struct usb_page_cache *pc; 717 struct { 718 struct usb_device_request req; 719 uint16_t param; 720 } st; 721 uint32_t actlen; 722 uint16_t param; 723 724 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 725 726 switch (USB_GET_STATE(xfer)) { 727 case USB_ST_TRANSFERRED: 728 DPRINTFN(4, "info received, actlen=%u\n", actlen); 729 730 if (actlen < sizeof(st)) { 731 DPRINTF("data too short actlen=%u\n", actlen); 732 goto tr_setup; 733 } 734 pc = usbd_xfer_get_frame(xfer, 0); 735 usbd_copy_out(pc, 0, &st, sizeof(st)); 736 737 if (st.req.bmRequestType == 0xa1 && st.req.bRequest == 0x20) { 738 struct ucom_softc *ucom = usbd_xfer_softc(xfer); 739 struct usie_softc *sc = ucom->sc_parent; 740 741 param = le16toh(st.param); 742 DPRINTF("param=%x\n", param); 743 sc->sc_msr = sc->sc_lsr = 0; 744 sc->sc_msr |= (param & USIE_DCD) ? SER_DCD : 0; 745 sc->sc_msr |= (param & USIE_DSR) ? SER_DSR : 0; 746 sc->sc_msr |= (param & USIE_RI) ? SER_RI : 0; 747 sc->sc_msr |= (param & USIE_CTS) ? 0 : SER_CTS; 748 sc->sc_msr |= (param & USIE_RTS) ? SER_RTS : 0; 749 sc->sc_msr |= (param & USIE_DTR) ? SER_DTR : 0; 750 } 751 /* fall though */ 752 case USB_ST_SETUP: 753 tr_setup: 754 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 755 usbd_transfer_submit(xfer); 756 break; 757 758 default: /* Error */ 759 DPRINTF("USB transfer error, %s\n", 760 usbd_errstr(error)); 761 762 if (error != USB_ERR_CANCELLED) { 763 usbd_xfer_set_stall(xfer); 764 goto tr_setup; 765 } 766 break; 767 } 768 } 769 770 static void 771 usie_if_rx_callback(struct usb_xfer *xfer, usb_error_t error) 772 { 773 struct epoch_tracker et; 774 struct usie_softc *sc = usbd_xfer_softc(xfer); 775 struct ifnet *ifp = sc->sc_ifp; 776 struct mbuf *m0; 777 struct mbuf *m = NULL; 778 struct usie_desc *rxd; 779 uint32_t actlen; 780 uint16_t err; 781 uint16_t pkt; 782 uint16_t ipl; 783 uint16_t len; 784 uint16_t diff; 785 uint8_t pad; 786 uint8_t ipv; 787 788 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 789 790 switch (USB_GET_STATE(xfer)) { 791 case USB_ST_TRANSFERRED: 792 DPRINTFN(15, "rx done, actlen=%u\n", actlen); 793 794 if (actlen < sizeof(struct usie_hip)) { 795 DPRINTF("data too short %u\n", actlen); 796 goto tr_setup; 797 } 798 m = sc->sc_rxm; 799 sc->sc_rxm = NULL; 800 801 /* fall though */ 802 case USB_ST_SETUP: 803 tr_setup: 804 805 if (sc->sc_rxm == NULL) { 806 sc->sc_rxm = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, 807 MJUMPAGESIZE /* could be bigger than MCLBYTES */ ); 808 } 809 if (sc->sc_rxm == NULL) { 810 DPRINTF("could not allocate Rx mbuf\n"); 811 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 812 usbd_xfer_set_stall(xfer); 813 usbd_xfer_set_frames(xfer, 0); 814 } else { 815 /* 816 * Directly loading a mbuf cluster into DMA to 817 * save some data copying. This works because 818 * there is only one cluster. 819 */ 820 usbd_xfer_set_frame_data(xfer, 0, 821 mtod(sc->sc_rxm, caddr_t), MIN(MJUMPAGESIZE, USIE_RXSZ_MAX)); 822 usbd_xfer_set_frames(xfer, 1); 823 } 824 usbd_transfer_submit(xfer); 825 break; 826 827 default: /* Error */ 828 DPRINTF("USB transfer error, %s\n", usbd_errstr(error)); 829 830 if (error != USB_ERR_CANCELLED) { 831 /* try to clear stall first */ 832 usbd_xfer_set_stall(xfer); 833 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 834 goto tr_setup; 835 } 836 if (sc->sc_rxm != NULL) { 837 m_freem(sc->sc_rxm); 838 sc->sc_rxm = NULL; 839 } 840 break; 841 } 842 843 if (m == NULL) 844 return; 845 846 mtx_unlock(&sc->sc_mtx); 847 848 m->m_pkthdr.len = m->m_len = actlen; 849 850 err = pkt = 0; 851 852 /* HW can aggregate multiple frames in a single USB xfer */ 853 NET_EPOCH_ENTER(et); 854 for (;;) { 855 rxd = mtod(m, struct usie_desc *); 856 857 len = be16toh(rxd->hip.len) & USIE_HIP_IP_LEN_MASK; 858 pad = (rxd->hip.id & USIE_HIP_PAD) ? 1 : 0; 859 ipl = (len - pad - ETHER_HDR_LEN); 860 if (ipl >= len) { 861 DPRINTF("Corrupt frame\n"); 862 m_freem(m); 863 break; 864 } 865 diff = sizeof(struct usie_desc) + ipl + pad; 866 867 if (((rxd->hip.id & USIE_HIP_MASK) != USIE_HIP_IP) || 868 (be16toh(rxd->desc_type) & USIE_TYPE_MASK) != USIE_IP_RX) { 869 DPRINTF("received wrong type of packet\n"); 870 m->m_data += diff; 871 m->m_pkthdr.len = (m->m_len -= diff); 872 err++; 873 if (m->m_pkthdr.len > 0) 874 continue; 875 m_freem(m); 876 break; 877 } 878 switch (be16toh(rxd->ethhdr.ether_type)) { 879 case ETHERTYPE_IP: 880 ipv = NETISR_IP; 881 break; 882 #ifdef INET6 883 case ETHERTYPE_IPV6: 884 ipv = NETISR_IPV6; 885 break; 886 #endif 887 default: 888 DPRINTF("unsupported ether type\n"); 889 err++; 890 break; 891 } 892 893 /* the last packet */ 894 if (m->m_pkthdr.len <= diff) { 895 m->m_data += (sizeof(struct usie_desc) + pad); 896 m->m_pkthdr.len = m->m_len = ipl; 897 m->m_pkthdr.rcvif = ifp; 898 BPF_MTAP(sc->sc_ifp, m); 899 netisr_dispatch(ipv, m); 900 break; 901 } 902 /* copy aggregated frames to another mbuf */ 903 m0 = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 904 if (__predict_false(m0 == NULL)) { 905 DPRINTF("could not allocate mbuf\n"); 906 err++; 907 m_freem(m); 908 break; 909 } 910 m_copydata(m, sizeof(struct usie_desc) + pad, ipl, mtod(m0, caddr_t)); 911 m0->m_pkthdr.rcvif = ifp; 912 m0->m_pkthdr.len = m0->m_len = ipl; 913 914 BPF_MTAP(sc->sc_ifp, m0); 915 netisr_dispatch(ipv, m0); 916 917 m->m_data += diff; 918 m->m_pkthdr.len = (m->m_len -= diff); 919 } 920 NET_EPOCH_EXIT(et); 921 922 mtx_lock(&sc->sc_mtx); 923 924 if_inc_counter(ifp, IFCOUNTER_IERRORS, err); 925 if_inc_counter(ifp, IFCOUNTER_IPACKETS, pkt); 926 } 927 928 static void 929 usie_if_tx_callback(struct usb_xfer *xfer, usb_error_t error) 930 { 931 struct usie_softc *sc = usbd_xfer_softc(xfer); 932 struct usb_page_cache *pc; 933 struct ifnet *ifp = sc->sc_ifp; 934 struct mbuf *m; 935 uint16_t size; 936 937 switch (USB_GET_STATE(xfer)) { 938 case USB_ST_TRANSFERRED: 939 DPRINTFN(11, "transfer complete\n"); 940 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 941 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 942 943 /* fall though */ 944 case USB_ST_SETUP: 945 tr_setup: 946 947 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 948 break; 949 950 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 951 if (m == NULL) 952 break; 953 954 if (m->m_pkthdr.len > (int)(MCLBYTES - ETHER_HDR_LEN + 955 ETHER_CRC_LEN - sizeof(sc->sc_txd))) { 956 DPRINTF("packet len is too big: %d\n", 957 m->m_pkthdr.len); 958 break; 959 } 960 pc = usbd_xfer_get_frame(xfer, 0); 961 962 sc->sc_txd.hip.len = htobe16(m->m_pkthdr.len + 963 ETHER_HDR_LEN + ETHER_CRC_LEN); 964 size = sizeof(sc->sc_txd); 965 966 usbd_copy_in(pc, 0, &sc->sc_txd, size); 967 usbd_m_copy_in(pc, size, m, 0, m->m_pkthdr.len); 968 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len + 969 size + ETHER_CRC_LEN); 970 971 BPF_MTAP(ifp, m); 972 973 m_freem(m); 974 975 usbd_transfer_submit(xfer); 976 break; 977 978 default: /* Error */ 979 DPRINTF("USB transfer error, %s\n", 980 usbd_errstr(error)); 981 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 982 983 if (error != USB_ERR_CANCELLED) { 984 usbd_xfer_set_stall(xfer); 985 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 986 goto tr_setup; 987 } 988 break; 989 } 990 } 991 992 static void 993 usie_if_status_callback(struct usb_xfer *xfer, usb_error_t error) 994 { 995 struct usie_softc *sc = usbd_xfer_softc(xfer); 996 struct usb_page_cache *pc; 997 struct usb_cdc_notification cdc; 998 uint32_t actlen; 999 1000 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 1001 1002 switch (USB_GET_STATE(xfer)) { 1003 case USB_ST_TRANSFERRED: 1004 DPRINTFN(4, "info received, actlen=%d\n", actlen); 1005 1006 /* usb_cdc_notification - .data[16] */ 1007 if (actlen < (sizeof(cdc) - 16)) { 1008 DPRINTF("data too short %d\n", actlen); 1009 goto tr_setup; 1010 } 1011 pc = usbd_xfer_get_frame(xfer, 0); 1012 usbd_copy_out(pc, 0, &cdc, (sizeof(cdc) - 16)); 1013 1014 DPRINTFN(4, "bNotification=%x\n", cdc.bNotification); 1015 1016 if (cdc.bNotification & UCDC_N_RESPONSE_AVAILABLE) { 1017 taskqueue_enqueue(taskqueue_thread, 1018 &sc->sc_if_status_task); 1019 } 1020 /* fall though */ 1021 case USB_ST_SETUP: 1022 tr_setup: 1023 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1024 usbd_transfer_submit(xfer); 1025 break; 1026 1027 default: /* Error */ 1028 DPRINTF("USB transfer error, %s\n", 1029 usbd_errstr(error)); 1030 1031 if (error != USB_ERR_CANCELLED) { 1032 usbd_xfer_set_stall(xfer); 1033 goto tr_setup; 1034 } 1035 break; 1036 } 1037 } 1038 1039 static void 1040 usie_if_sync_to(void *arg) 1041 { 1042 struct usie_softc *sc = arg; 1043 1044 taskqueue_enqueue(taskqueue_thread, &sc->sc_if_sync_task); 1045 } 1046 1047 static void 1048 usie_if_sync_cb(void *arg, int pending) 1049 { 1050 struct usie_softc *sc = arg; 1051 1052 mtx_lock(&sc->sc_mtx); 1053 1054 /* call twice */ 1055 usie_if_cmd(sc, USIE_HIP_SYNC2M); 1056 usie_if_cmd(sc, USIE_HIP_SYNC2M); 1057 1058 usb_callout_reset(&sc->sc_if_sync_ch, 2 * hz, usie_if_sync_to, sc); 1059 1060 mtx_unlock(&sc->sc_mtx); 1061 } 1062 1063 static void 1064 usie_if_status_cb(void *arg, int pending) 1065 { 1066 struct usie_softc *sc = arg; 1067 struct ifnet *ifp = sc->sc_ifp; 1068 struct usb_device_request req; 1069 struct usie_hip *hip; 1070 struct usie_lsi *lsi; 1071 uint16_t actlen; 1072 uint8_t ntries; 1073 uint8_t pad; 1074 1075 mtx_lock(&sc->sc_mtx); 1076 1077 req.bmRequestType = UT_READ_CLASS_INTERFACE; 1078 req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE; 1079 USETW(req.wValue, 0); 1080 USETW(req.wIndex, sc->sc_if_ifnum); 1081 USETW(req.wLength, sizeof(sc->sc_status_temp)); 1082 1083 for (ntries = 0; ntries != 10; ntries++) { 1084 int err; 1085 1086 err = usbd_do_request_flags(sc->sc_udev, 1087 &sc->sc_mtx, &req, sc->sc_status_temp, USB_SHORT_XFER_OK, 1088 &actlen, USB_DEFAULT_TIMEOUT); 1089 1090 if (err == 0) 1091 break; 1092 1093 DPRINTF("Control request failed: %s %d/10\n", 1094 usbd_errstr(err), ntries); 1095 1096 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1097 } 1098 1099 if (ntries == 10) { 1100 mtx_unlock(&sc->sc_mtx); 1101 DPRINTF("Timeout\n"); 1102 return; 1103 } 1104 1105 hip = (struct usie_hip *)sc->sc_status_temp; 1106 1107 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0; 1108 1109 DPRINTF("hip.id=%x hip.len=%d actlen=%u pad=%d\n", 1110 hip->id, be16toh(hip->len), actlen, pad); 1111 1112 switch (hip->id & USIE_HIP_MASK) { 1113 case USIE_HIP_SYNC2H: 1114 usie_if_cmd(sc, USIE_HIP_SYNC2M); 1115 break; 1116 case USIE_HIP_RESTR: 1117 usb_callout_stop(&sc->sc_if_sync_ch); 1118 break; 1119 case USIE_HIP_UMTS: 1120 lsi = (struct usie_lsi *)( 1121 sc->sc_status_temp + sizeof(struct usie_hip) + pad); 1122 1123 DPRINTF("lsi.proto=%x lsi.len=%d\n", lsi->proto, 1124 be16toh(lsi->len)); 1125 1126 if (lsi->proto != USIE_LSI_UMTS) 1127 break; 1128 1129 if (lsi->area == USIE_LSI_AREA_NO || 1130 lsi->area == USIE_LSI_AREA_NODATA) { 1131 device_printf(sc->sc_dev, "no service available\n"); 1132 break; 1133 } 1134 if (lsi->state == USIE_LSI_STATE_IDLE) { 1135 DPRINTF("lsi.state=%x\n", lsi->state); 1136 break; 1137 } 1138 DPRINTF("ctx=%x\n", hip->param); 1139 sc->sc_txd.hip.param = hip->param; 1140 1141 sc->sc_net.addr_len = lsi->pdp_addr_len; 1142 memcpy(&sc->sc_net.dns1_addr, &lsi->dns1_addr, 16); 1143 memcpy(&sc->sc_net.dns2_addr, &lsi->dns2_addr, 16); 1144 memcpy(sc->sc_net.pdp_addr, lsi->pdp_addr, 16); 1145 memcpy(sc->sc_net.gw_addr, lsi->gw_addr, 16); 1146 ifp->if_flags |= IFF_UP; 1147 ifp->if_drv_flags |= IFF_DRV_RUNNING; 1148 1149 device_printf(sc->sc_dev, "IP Addr=%d.%d.%d.%d\n", 1150 *lsi->pdp_addr, *(lsi->pdp_addr + 1), 1151 *(lsi->pdp_addr + 2), *(lsi->pdp_addr + 3)); 1152 device_printf(sc->sc_dev, "Gateway Addr=%d.%d.%d.%d\n", 1153 *lsi->gw_addr, *(lsi->gw_addr + 1), 1154 *(lsi->gw_addr + 2), *(lsi->gw_addr + 3)); 1155 device_printf(sc->sc_dev, "Prim NS Addr=%d.%d.%d.%d\n", 1156 *lsi->dns1_addr, *(lsi->dns1_addr + 1), 1157 *(lsi->dns1_addr + 2), *(lsi->dns1_addr + 3)); 1158 device_printf(sc->sc_dev, "Scnd NS Addr=%d.%d.%d.%d\n", 1159 *lsi->dns2_addr, *(lsi->dns2_addr + 1), 1160 *(lsi->dns2_addr + 2), *(lsi->dns2_addr + 3)); 1161 1162 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI); 1163 break; 1164 1165 case USIE_HIP_RCGI: 1166 /* ignore, workaround for sloppy windows */ 1167 break; 1168 default: 1169 DPRINTF("undefined msgid: %x\n", hip->id); 1170 break; 1171 } 1172 1173 mtx_unlock(&sc->sc_mtx); 1174 } 1175 1176 static void 1177 usie_if_start(struct ifnet *ifp) 1178 { 1179 struct usie_softc *sc = ifp->if_softc; 1180 1181 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1182 DPRINTF("Not running\n"); 1183 return; 1184 } 1185 mtx_lock(&sc->sc_mtx); 1186 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_TX]); 1187 mtx_unlock(&sc->sc_mtx); 1188 1189 DPRINTFN(3, "interface started\n"); 1190 } 1191 1192 static int 1193 usie_if_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst, 1194 struct route *ro) 1195 { 1196 int err; 1197 1198 DPRINTF("proto=%x\n", dst->sa_family); 1199 1200 switch (dst->sa_family) { 1201 #ifdef INET6 1202 case AF_INET6; 1203 /* fall though */ 1204 #endif 1205 case AF_INET: 1206 break; 1207 1208 /* silently drop dhclient packets */ 1209 case AF_UNSPEC: 1210 m_freem(m); 1211 return (0); 1212 1213 /* drop other packet types */ 1214 default: 1215 m_freem(m); 1216 return (EAFNOSUPPORT); 1217 } 1218 1219 err = (ifp->if_transmit)(ifp, m); 1220 if (err) { 1221 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1222 return (ENOBUFS); 1223 } 1224 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 1225 1226 return (0); 1227 } 1228 1229 static void 1230 usie_if_init(void *arg) 1231 { 1232 struct usie_softc *sc = arg; 1233 struct ifnet *ifp = sc->sc_ifp; 1234 uint8_t i; 1235 1236 mtx_lock(&sc->sc_mtx); 1237 1238 /* write tx descriptor */ 1239 sc->sc_txd.hip.id = USIE_HIP_CTX; 1240 sc->sc_txd.hip.param = 0; /* init value */ 1241 sc->sc_txd.desc_type = htobe16(USIE_IP_TX); 1242 1243 for (i = 0; i != USIE_IF_N_XFER; i++) 1244 usbd_xfer_set_stall(sc->sc_if_xfer[i]); 1245 1246 usbd_transfer_start(sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_RX]); 1247 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_STATUS]); 1248 usbd_transfer_start(sc->sc_if_xfer[USIE_IF_RX]); 1249 1250 /* if not running, initiate the modem */ 1251 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 1252 usie_cns_req(sc, USIE_CNS_ID_INIT, USIE_CNS_OB_LINK_UPDATE); 1253 1254 mtx_unlock(&sc->sc_mtx); 1255 1256 DPRINTF("ifnet initialized\n"); 1257 } 1258 1259 static void 1260 usie_if_stop(struct usie_softc *sc) 1261 { 1262 usb_callout_drain(&sc->sc_if_sync_ch); 1263 1264 mtx_lock(&sc->sc_mtx); 1265 1266 /* usie_cns_req() clears IFF_* flags */ 1267 usie_cns_req(sc, USIE_CNS_ID_STOP, USIE_CNS_OB_LINK_UPDATE); 1268 1269 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_TX]); 1270 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_RX]); 1271 usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_STATUS]); 1272 1273 /* shutdown device */ 1274 usie_if_cmd(sc, USIE_HIP_DOWN); 1275 1276 mtx_unlock(&sc->sc_mtx); 1277 } 1278 1279 static int 1280 usie_if_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1281 { 1282 struct usie_softc *sc = ifp->if_softc; 1283 struct ieee80211req *ireq; 1284 struct ieee80211req_sta_info si; 1285 struct ifmediareq *ifmr; 1286 1287 switch (cmd) { 1288 case SIOCSIFFLAGS: 1289 if (ifp->if_flags & IFF_UP) { 1290 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 1291 usie_if_init(sc); 1292 } else { 1293 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1294 usie_if_stop(sc); 1295 } 1296 break; 1297 1298 case SIOCSIFCAP: 1299 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1300 device_printf(sc->sc_dev, 1301 "Connect to the network first.\n"); 1302 break; 1303 } 1304 mtx_lock(&sc->sc_mtx); 1305 usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI); 1306 mtx_unlock(&sc->sc_mtx); 1307 break; 1308 1309 case SIOCG80211: 1310 ireq = (struct ieee80211req *)data; 1311 1312 if (ireq->i_type != IEEE80211_IOC_STA_INFO) 1313 break; 1314 1315 memset(&si, 0, sizeof(si)); 1316 si.isi_len = sizeof(si); 1317 /* 1318 * ifconfig expects RSSI in 0.5dBm units 1319 * relative to the noise floor. 1320 */ 1321 si.isi_rssi = 2 * sc->sc_rssi; 1322 if (copyout(&si, (uint8_t *)ireq->i_data + 8, 1323 sizeof(struct ieee80211req_sta_info))) 1324 DPRINTF("copyout failed\n"); 1325 DPRINTF("80211\n"); 1326 break; 1327 1328 case SIOCGIFMEDIA: /* to fool ifconfig */ 1329 ifmr = (struct ifmediareq *)data; 1330 ifmr->ifm_count = 1; 1331 DPRINTF("media\n"); 1332 break; 1333 1334 case SIOCSIFADDR: 1335 break; 1336 1337 default: 1338 return (EINVAL); 1339 } 1340 return (0); 1341 } 1342 1343 static int 1344 usie_do_request(struct usie_softc *sc, struct usb_device_request *req, 1345 void *data) 1346 { 1347 int err = 0; 1348 int ntries; 1349 1350 mtx_assert(&sc->sc_mtx, MA_OWNED); 1351 1352 for (ntries = 0; ntries != 10; ntries++) { 1353 err = usbd_do_request(sc->sc_udev, 1354 &sc->sc_mtx, req, data); 1355 if (err == 0) 1356 break; 1357 1358 DPRINTF("Control request failed: %s %d/10\n", 1359 usbd_errstr(err), ntries); 1360 1361 usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10)); 1362 } 1363 return (err); 1364 } 1365 1366 static int 1367 usie_if_cmd(struct usie_softc *sc, uint8_t cmd) 1368 { 1369 struct usb_device_request req; 1370 struct usie_hip msg; 1371 1372 msg.len = 0; 1373 msg.id = cmd; 1374 msg.param = 0; 1375 1376 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 1377 req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND; 1378 USETW(req.wValue, 0); 1379 USETW(req.wIndex, sc->sc_if_ifnum); 1380 USETW(req.wLength, sizeof(msg)); 1381 1382 DPRINTF("cmd=%x\n", cmd); 1383 1384 return (usie_do_request(sc, &req, &msg)); 1385 } 1386 1387 static void 1388 usie_cns_req(struct usie_softc *sc, uint32_t id, uint16_t obj) 1389 { 1390 struct ifnet *ifp = sc->sc_ifp; 1391 struct mbuf *m; 1392 struct usb_xfer *xfer; 1393 struct usie_hip *hip; 1394 struct usie_cns *cns; 1395 uint8_t *param; 1396 uint8_t *tmp; 1397 uint8_t cns_len; 1398 1399 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1400 if (__predict_false(m == NULL)) { 1401 DPRINTF("could not allocate mbuf\n"); 1402 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1403 return; 1404 } 1405 /* to align usie_hip{} on 32 bit */ 1406 m->m_data += 3; 1407 param = mtod(m, uint8_t *); 1408 *param++ = USIE_HIP_FRM_CHR; 1409 hip = (struct usie_hip *)param; 1410 cns = (struct usie_cns *)(hip + 1); 1411 1412 tmp = param + USIE_HIPCNS_MIN - 2; 1413 1414 switch (obj) { 1415 case USIE_CNS_OB_LINK_UPDATE: 1416 cns_len = 2; 1417 cns->op = USIE_CNS_OP_SET; 1418 *tmp++ = 1; /* profile ID, always use 1 for now */ 1419 *tmp++ = id == USIE_CNS_ID_INIT ? 1 : 0; 1420 break; 1421 1422 case USIE_CNS_OB_PROF_WRITE: 1423 cns_len = 245; 1424 cns->op = USIE_CNS_OP_SET; 1425 *tmp++ = 1; /* profile ID, always use 1 for now */ 1426 *tmp++ = 2; 1427 memcpy(tmp, &sc->sc_net, 34); 1428 memset(tmp + 35, 0, 245 - 36); 1429 tmp += 243; 1430 break; 1431 1432 case USIE_CNS_OB_RSSI: 1433 cns_len = 0; 1434 cns->op = USIE_CNS_OP_REQ; 1435 break; 1436 1437 default: 1438 DPRINTF("unsupported CnS object type\n"); 1439 return; 1440 } 1441 *tmp = USIE_HIP_FRM_CHR; 1442 1443 hip->len = htobe16(sizeof(struct usie_cns) + cns_len); 1444 hip->id = USIE_HIP_CNS2M; 1445 hip->param = 0; /* none for CnS */ 1446 1447 cns->obj = htobe16(obj); 1448 cns->id = htobe32(id); 1449 cns->len = cns_len; 1450 cns->rsv0 = cns->rsv1 = 0; /* always '' */ 1451 1452 param = (uint8_t *)(cns + 1); 1453 1454 DPRINTF("param: %16D\n", param, ":"); 1455 1456 m->m_pkthdr.len = m->m_len = USIE_HIPCNS_MIN + cns_len + 2; 1457 1458 xfer = sc->sc_uc_xfer[USIE_HIP_IF][USIE_UC_TX]; 1459 1460 if (usbd_xfer_get_priv(xfer) == NULL) { 1461 usbd_xfer_set_priv(xfer, m); 1462 usbd_transfer_start(xfer); 1463 } else { 1464 DPRINTF("Dropped CNS event\n"); 1465 m_freem(m); 1466 } 1467 } 1468 1469 static void 1470 usie_cns_rsp(struct usie_softc *sc, struct usie_cns *cns) 1471 { 1472 struct ifnet *ifp = sc->sc_ifp; 1473 1474 DPRINTF("received CnS\n"); 1475 1476 switch (be16toh(cns->obj)) { 1477 case USIE_CNS_OB_LINK_UPDATE: 1478 if (be32toh(cns->id) & USIE_CNS_ID_INIT) 1479 usie_if_sync_to(sc); 1480 else if (be32toh(cns->id) & USIE_CNS_ID_STOP) { 1481 ifp->if_flags &= ~IFF_UP; 1482 ifp->if_drv_flags &= 1483 ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1484 } else 1485 DPRINTF("undefined link update\n"); 1486 break; 1487 1488 case USIE_CNS_OB_RSSI: 1489 sc->sc_rssi = be16toh(*(int16_t *)(cns + 1)); 1490 if (sc->sc_rssi <= 0) 1491 device_printf(sc->sc_dev, "No signal\n"); 1492 else { 1493 device_printf(sc->sc_dev, "RSSI=%ddBm\n", 1494 sc->sc_rssi - 110); 1495 } 1496 break; 1497 1498 case USIE_CNS_OB_PROF_WRITE: 1499 break; 1500 1501 case USIE_CNS_OB_PDP_READ: 1502 break; 1503 1504 default: 1505 DPRINTF("undefined CnS\n"); 1506 break; 1507 } 1508 } 1509 1510 static void 1511 usie_hip_rsp(struct usie_softc *sc, uint8_t *rsp, uint32_t len) 1512 { 1513 struct usie_hip *hip; 1514 struct usie_cns *cns; 1515 uint32_t i; 1516 uint32_t j; 1517 uint32_t off; 1518 uint8_t tmp[USIE_HIPCNS_MAX] __aligned(4); 1519 1520 for (off = 0; (off + USIE_HIPCNS_MIN) <= len; off++) { 1521 uint8_t pad; 1522 1523 while ((off < len) && (rsp[off] == USIE_HIP_FRM_CHR)) 1524 off++; 1525 1526 /* Unstuff the bytes */ 1527 for (i = j = 0; ((i + off) < len) && 1528 (j < USIE_HIPCNS_MAX); i++) { 1529 if (rsp[i + off] == USIE_HIP_FRM_CHR) 1530 break; 1531 1532 if (rsp[i + off] == USIE_HIP_ESC_CHR) { 1533 if ((i + off + 1) >= len) 1534 break; 1535 tmp[j++] = rsp[i++ + off + 1] ^ 0x20; 1536 } else { 1537 tmp[j++] = rsp[i + off]; 1538 } 1539 } 1540 1541 off += i; 1542 1543 DPRINTF("frame len=%d\n", j); 1544 1545 if (j < sizeof(struct usie_hip)) { 1546 DPRINTF("too little data\n"); 1547 break; 1548 } 1549 /* 1550 * Make sure we are not reading the stack if something 1551 * is wrong. 1552 */ 1553 memset(tmp + j, 0, sizeof(tmp) - j); 1554 1555 hip = (struct usie_hip *)tmp; 1556 1557 DPRINTF("hip: len=%d msgID=%02x, param=%02x\n", 1558 be16toh(hip->len), hip->id, hip->param); 1559 1560 pad = (hip->id & USIE_HIP_PAD) ? 1 : 0; 1561 1562 if ((hip->id & USIE_HIP_MASK) == USIE_HIP_CNS2H) { 1563 cns = (struct usie_cns *)(((uint8_t *)(hip + 1)) + pad); 1564 1565 if (j < (sizeof(struct usie_cns) + 1566 sizeof(struct usie_hip) + pad)) { 1567 DPRINTF("too little data\n"); 1568 break; 1569 } 1570 DPRINTF("cns: obj=%04x, op=%02x, rsv0=%02x, " 1571 "app=%08x, rsv1=%02x, len=%d\n", 1572 be16toh(cns->obj), cns->op, cns->rsv0, 1573 be32toh(cns->id), cns->rsv1, cns->len); 1574 1575 if (cns->op & USIE_CNS_OP_ERR) 1576 DPRINTF("CnS error response\n"); 1577 else 1578 usie_cns_rsp(sc, cns); 1579 1580 i = sizeof(struct usie_hip) + pad + sizeof(struct usie_cns); 1581 j = cns->len; 1582 } else { 1583 i = sizeof(struct usie_hip) + pad; 1584 j = be16toh(hip->len); 1585 } 1586 #ifdef USB_DEBUG 1587 if (usie_debug == 0) 1588 continue; 1589 1590 while (i < USIE_HIPCNS_MAX && j > 0) { 1591 DPRINTF("param[0x%02x] = 0x%02x\n", i, tmp[i]); 1592 i++; 1593 j--; 1594 } 1595 #endif 1596 } 1597 } 1598 1599 static int 1600 usie_driver_loaded(struct module *mod, int what, void *arg) 1601 { 1602 switch (what) { 1603 case MOD_LOAD: 1604 /* register autoinstall handler */ 1605 usie_etag = EVENTHANDLER_REGISTER(usb_dev_configured, 1606 usie_autoinst, NULL, EVENTHANDLER_PRI_ANY); 1607 break; 1608 case MOD_UNLOAD: 1609 EVENTHANDLER_DEREGISTER(usb_dev_configured, usie_etag); 1610 break; 1611 default: 1612 return (EOPNOTSUPP); 1613 } 1614 return (0); 1615 }
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